Independent technicians battle cracked ring lands and blown head gaskets when servicing abused turbocharged platforms. This Mitsubishi Lancer Evolution 4B11T Remanufactured Engine restores factory structural strength to 2.0L 4-Cylinder 16-Valve DOHC motors. A mandatory trade-off involves complete pre-oiling and strict turbo oil feed line flushing before starting to prevent catastrophic turbocharger bearing starvation during initial turnover.

Semi-closed deck die-cast aluminum block features casting mark 4B11 with parent bore centrifugal iron liners. The dual overhead camshaft cylinder head includes MIVEC variable valve timing on intake and exhaust camshafts. Total crated envelope dimensions measure 36in length by 36in width by 36in height with an engine weight of 260 lbs. Rotating assembly internals include a balanced forged steel crankshaft, forged steel connecting rods, floating pin pistons, and a 5.4-quart capacity baffled oil pan.

Key Features of Mitsubishi 4B11T

Performance shops buy Mitsubishi 4B11T remanufactured engine assemblies to replace damaged track motors with fresh factory-tolerance long blocks. This reinforced turbo platform provides high boost capability while restoring balanced cylinder compression for demanding track days.

- CNC deck surfacing achieves an Ra 18 mirror finish to lock high-pressure multi-layer steel head gaskets
- Semi-closed deck cylinder walls receive diamond plateau honing to maintain roundness under high manifold boost
- Micro-polished forged steel crankshaft journals maintain 0.0003in TIR runout to prevent rod bearing failure
- Align-honed main bearing tunnels maintain 0.0013in oil clearances to ensure continuous oil film cushion
- Multi-layer steel cylinder head gaskets withstand high turbo combustion pressures without coolant breach
- Dual MIVEC cam phasers are ultrasonic cleaned and tested to guarantee rapid camshaft phase advance
- Remanufactured 16-Valve cylinder heads feature cobalt valve seats holding 0.001in concentricity for optimal exhaust evacuation

Dyno Load Precision Machining Tolerances

Dynamometer load cell testing confirms 291 HP at 6,500 RPM and 300 ft-lbs torque at 4,000 RPM under continuous testing. Machining processes hold crankshaft journal runout at 0.0003in TIR with connecting rod oil clearances calibrated to 0.0013in. Diamond-honed cylinder walls verify compression between 150 PSI and 155 PSI across all 4 combustion chambers. Hot engine oil pressure maintains 65 PSI at 3,500 RPM while regulated coolant operating temperatures stabilize at 185°F to ensure sustained high-temperature cooling jacket reliability.

Vehicle Fitment Drivetrain Guide

This remanufactured turbo engine fits 2008 to 2015 Mitsubishi Lancer Evolution X models equipped with the 2.0L 1998cc DOHC 16-Valve 4B11T engine. Mates to all-wheel drive drivetrains paired with 5-Speed Manual or 6-Speed TC-SST dual-clutch transmissions. Fitment warning: this unit does not fit non-turbo Lancer 2.0L or 2.4L models, Hyundai G4KD applications, or Ralliart models without transferring specific turbocharger oil feed fittings and oil pan accessories.

Installation Protocol Service Schedules

Prime the turbocharger oil supply pipe and manual crank the engine with spark plugs removed to build positive oil pressure. Replace the intercooler and clean intake piping to eliminate metal fragments from past engine detonation. Do not operate this long block under boost pressure exceeding factory 22 PSI on pump gas without custom ECU dyno calibration.

- Fill crankcase with 5.4 quarts of synthetic 5W-30 break-in oil before cranking
- Drain initial oil charge and replace spin-on filter after the first 500 miles
- Complete full synthetic engine oil and filter service every 3,000 miles under severe boost conditions

Warranty Terms Core Return Policy

This remanufactured motor carries a 3-Year Unlimited-Mile parts warranty for consumer and commercial installations. We arrange prepaid freight logistics for your rebuildable core return within our standard 30-day window. Each wooden crate holds the assembled long block, timing chain assembly, oil pan, valve cover, and builder checklist.